Anyone here really? What? A timing light just for us.

[acerc]

Since your looking to use a drill motor to spin it, I suggest simply taking an old spark plug, open the gap up and orientate the plug (hold it over where you want to see the marks) so that the spark light points toward your timing marks (of course the plug will need to be installed in the boot), dim the lights, turn ignition on and spin. You should get enough light from the spark with the lights dimmed way down (might even need to be near dark) that you will be able to see the marks. This is how my method works, though I have a test stand built specifically for different types of ignitions/distributers with an adjustable gap. The spark is pretty weak on these rc ignitions, so it will probably need to be pretty dark, but it does work. And accurately.

If the little sensor tester does not work I'll give your method a shot.

 

[49dimes]

Did you get an ignition tester or a timing kit?

Tester.....


Timing kit (old style)…..

And I am wondering if you really just need to know if the magnet(s) on your Dub have a N or S polarity facing upwards?
Some 3W ignitions use N side polarity facing up and some with two magnets both N and S where as RcExcel ignitions use the S polarity facing up (it is the stronger magnetic field).
Also the Rcexel sensor needs to face correctly. It is a semiconductor that has a "beveled" side and a "full flat" side.
The "beveled" side needs to face the magnet in the prop hub.

In the picture you can see the "Beveled side" is facing up.

 

[acerc]

The RCEXCEL is in and functioning, that part is easy to do. Use to be one could rotate the prop hub slow enough to stop dead on when the plugs fired, but they changed it to require a quicker operation. I am getting the Hall sensor tester, it is powered by two watch type batteries, emits a sound and the led flashes when the sensor is set off. This led is what I am hoping is bright enough to light the timing marks when rotated quickly.
Everything is in and working, it even runs good. I just don't like not knowing the timing is right where it should be. If it is advanced there will be more power but also greater heat and more fuel consumption, I don't want more power that way and definitely don't need more heat.
And I am using the premade sensor that came with the ignition which is made for the engine.

 

[49dimes]

Ok got it. The newer timing kit I posted earlier is the same thing. I don't think the LED's would give off the correct wave length of light like a Xeon light or plasma arc will. Once you have "mapped" the crank shaft and made your marks could you just use some reflective tape and an inductive timing light ?

 

[acerc]

Ok got it. The newer timing kit I posted earlier is the same thing. I don't think the LED's would give off the correct wave length of light like a Xeon light or plasma arc will. Once you have "mapped" the crank shaft and made your marks could you just use some reflective tape and an inductive timing light ?

I agree, it may not work but it's worth a try. I don't think an inductive would work with the grounding sleeve covering our wires, but not sure about it.

 

[Snoopy1]

One question when you start spinning the motor with a drill how will you know where the timing will be. The timing changes with speed. Unless you know the advance curve I think you will not get the correct timing. Unless you know at what rpm you get full advance and make sure you are above that.

 

[acerc]

One question when you start spinning the motor with a drill how will you know where the timing will be. The timing changes with speed. Unless you know the advance curve I think you will not get the correct timing. Unless you know at what rpm you get full advance and make sure you are above that.

The drill on low is only 400rpm, not even close to idle speed so the timing should still be at start level.

 

[acerc]

I guess the tester is going on an extended trip because it is not going in the direction it should be... Freakin postal service, they suck!

 

[49dimes]

Yea Postal Service . Just a note....the ignitions like the Rcexl start to advance around 2000 rpm and are fully advanced around 4000 rpm. Also I have read that at first "Power up" the timing defaults to about 2 degree's BTDC for safe starting (less chance of kick back).

 

[acerc]

Yea Postal Service . Just a note....the ignitions like the Rcexl start to advance around 2000 rpm and are fully advanced around 4000 rpm. Also I have read that at first "Power up" the timing defaults to about 2 degree's BTDC for safe starting (less chance of kick back).

That is similar to what Milton at RC Extreme power told me. But it does no good if I have to spin the prop to fast to be able to stop instantly when the plug fires, hence a timing light.
This morning the USPS showed the package going a different direction but as of twenty minutes ago it say out for delivery to me. So I should know this afternoon whether it is going to do what I am looking to do.